Skip to main content
Squash Apps — CTO-led custom software & AI development
Senior SQL engineers · 5–10+ years · Dedicated full-time

Hire SQL developers in 48 hours.

Our database engineers design schemas that scale, write queries that perform, and keep production databases healthy. Specialties include PostgreSQL, SQL Server and MySQL — with an emphasis on query performance and data integrity.

Stack & tooling
PostgreSQLSQL ServerMySQLQuery optimizationStored proceduresCTEsData modelingIndexing strategies
What we build

What our SQL engineers deliver.

Database schema design

Normalized schemas, ERDs, multi-tenant data models, audit trail patterns.

Query optimization

Slow query analysis, index design, execution plan review, query rewrites.

Reporting & analytics

Complex reporting queries, materialized views, read replicas for analytics workloads.

Migrations

Zero-downtime schema migrations for live production databases.

Sample projects

Work our SQL team has shipped.

SaaS

Multi-tenant PostgreSQL schema redesign for a project management platform at 200k users

PostgreSQL 16row-level securityCituspgBouncer

Reduced p95 query latency from 900ms to 45ms

FinTech

SQL Server performance audit and index remediation for a trading reconciliation system

SQL Server 2022execution plan analysiscovering indexes

End-of-day report runtime cut from 4 hours to 18 minutes

Analytics

Materialized view and read-replica strategy for a SaaS analytics product

PostgreSQLmaterialized viewslogical replicationpganalyze

Removed all analytics load from the OLTP primary

Meet the team

Engineers you'll work with.

Representative profiles from our SQL pool. Every engineer is CTO-reviewed before being presented to a client.

NR
Senior Database Engineer
10 years · Dedicated
Available now
Core skills
PostgreSQLSQL ServerMySQLQuery optimizationStored procedures
Selected work
  • Designed a partitioned PostgreSQL schema for a FinTech platform processing 50M transactions/month
  • Reduced a client's AWS RDS bill by 40% through index consolidation and query rewrites — no hardware change
MK
Lead SQL Engineer
9 years · Dedicated
Available in 2 weeks
Core skills
PostgreSQLSQL ServerMySQLQuery optimizationStored procedures
Selected work
  • Led a team of 6 to migrate a legacy monolith to microservices — zero-downtime over 4 months
  • Cut TTFB by 60% on a SQL platform serving 500k MAU via caching and code-splitting

* Representative composites. We send you 3 real profiles with CVs and GitHub within 24h of your request.

Industries & use cases
Legacy database rescueSaaS data layerAnalytics platformReporting systemsDatabase migrations
SRSrijith Radhakrishnan — Founder & CTO, Squash Apps
Meet the CTO
Srijith Radhakrishnan
Founder & CTO

20+ years shipping production software. Built Kuyil AI (our AI assistant platform) and Garuda (clinic management SaaS) — along with 500+ client projects across SaaS, HealthTech, FinTech, Logistics and eCommerce.

Personally reviews every engagement’s first sprint: architecture, code quality, delivery discipline. Not a sales handoff. The CTO stays in the room.

20+ years experience500+ projects delivered3 offices globallyCTO-led every engagement🏆 Best AI & Digital Transformation Co. · World AI Expo Dubai 2025
Get developer profiles

Tell us what you need. We send you 3 hand-picked SQL profiles within 24 hours.

No commitment until you choose to onboard. Interview and test before you decide.

  1. 1
    Tell us your requirements
    Stack specifics, seniority, timezone needs, and what you're building with SQL.
  2. 2
    3 profiles within 24h
    Hand-picked engineers matched to your requirements — with CVs, GitHub profiles and sample work.
  3. 3
    Interview & test
    Technical interview and optional paid test sprint before any commitment.
  4. 4
    Onboarded in 7 days
    Into your standups, repos and sprint structure.
  5. No sales pressure Reply in 24h NDA available

No sales pressure. We respond within 24h or refund nothing because it’s free.

Frequently asked questions

Can I interview developers before hiring?

Absolutely. You interview, optionally run a paid test sprint, and only commit when you're satisfied. No pressure.

What pricing models do you offer for SQL engineers?

Monthly retainer for ongoing work, starting at $10k/month for a single senior engineer. Hourly for short engagements. Fixed-price for project-scoped work.

What tools do your SQL developers use?

Jira, GitHub, GitLab, Linear, Slack, Notion — we adapt to your stack, not the other way around.

Are developers full-time on our project?

Yes — dedicated full-time, not shared across clients.

Can we scale up or down?

Scale up with new engineers onboarded in 48h. Scale down with two weeks notice. No contractual lock-in.

Do you work with cloud-managed databases?

Yes — AWS RDS, Azure SQL, Cloud SQL (GCP), PlanetScale, Neon, Supabase. We pick the right managed service for your workload and budget.

Can you optimize our existing slow queries?

Yes. We start with an audit: slow query log review, index analysis, execution plan inspection. We've cut query times by 10–100× on several engagements.

Book a 15-min call